sciencehabit writes: Before you down that pint, check the shape of your glass—you might be drinking more beer than you realize. According to a new study of British beer drinkers, an optical illusion caused by the shape of a curved glass can dramatically increase the speed at which we swill. The researchers recruited 160 Brits, and asked them to watch a nature documentary while they drank beer from straight or curved glasses. The group drinking a full glass of lager out of curved flute glasses drank significantly faster than the other group--possibly because the curved glasses impaired their ability to pace themselves while drinking.